SATKHIRA, KHULNA, BANGLADESH – 2011/09/10: A flood-affected man stands on high land waits for a boat. 10 September 2011, Satkhira, BangladeshBangladesh is one of the countries most vulnerable to the effects of climate change. The regular and severe natural hazards that Bangladesh already suffers from tropical cyclones, river erosion, flood, landslides and drought are all set to increase in intensity and frequency as a result of climate change. Sea level rise will increasingly inundate coastal land in Bangladesh and dramatic coastal and river erosion will destroy lands and homes. These and the many other adverse effects of climate change will severely impact the economy and development of the country.One of the most dramatic impacts will be the forced movement of people throughout Bangladesh as a result of losing their homes, lands, property and livelihoods to the effects of climate change. While it is impossible to predict completely accurate figures of how many people will be displaced by climate change, the best current estimates state that sea level rise alone will displace 18 million Bangladeshis within the next 40 years. The vast majority of these people will be displaced within Bangladesh not across international borders presenting the Government with enormous challenges, particularly when it comes to finding places to live and work for those displaced. (Photo by Probal Rashid/LightRocket via Getty Images)